Switch account removal worker to new return value

Signed-off-by: Mario Danic <mario@lovelyhq.com>

app/src/main/java/com/nextcloud/talk/jobs/AccountRemovalWorker.java

@@ -249,6 +249,6 @@ public class AccountRemovalWorker extends Worker {
             }
         }
 
-        return Result.SUCCESS;
+        return Result.success();
     }
 }